USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Osmia (Mason Bees) is a genus of apoid wasp in the family Megachilidae. They visit flowers of dimpled troutlily, groundsel, Greater Spearwort, and Silver-stem Lupine.

EOL has data for 17 attributes, including:

Known occurrences, collected specimens and observations of Mason bees. View this species on GBIF